Initial mockup files cleaning.
Mockup android, mvn, skin and other cleanings.
Merge pull request #717 from RotaruDan/mockup_android_cleaning

Mockup android cleaning
Completed base skin and added some icons.
Minor changes.
Added two test to see the skin created.
Merge pull request #719 from gorco/UISkin

Ui skin
Mockup refactoring and some small i18n bugfixes.
Merge pull request #720 from RotaruDan/mockupRefactoring

Mockup refactoring and some small i18n bugfixes.
Adds a new improved font. Roboto-Regular.ttf under the Apache 2.0 license.
Merge pull request #721 from RotaruDan/newImprovedFont

Adds a new improved font. Roboto-Regular.ttf under the Apache 2.0 license
Fixed and improved DropDownWidget.
Added HiddenPanel widget
Merge pull request #718 from RotaruDan/mockup_android_cleaning

Fixes DropDown widget.
Merge pull request #722 from gorco/hiddenPanel

Added HiddenPanel widget
Adds IconWithPanel UI widget.
Adds IconWithPanelTest.
Small MockupUITest improvements.
Sets openPanel to null when hiding.
Adds Settings widget and I18N messages.